/Engine/Plugins/Runtime/MassGameplay/Source/MassSpawner/Public/MassEntityTraitBase.h
Base class for Mass Entity Traits. An entity trait is a set of fragments that create a logical trait tha makes sense to end use (i.e. replication, visualization). The template building method allows to configure some fragments based on properties or cached values. For example, a fragment can be added based on a referenced asset, or some memory hungry settings can be cached and just and index stored on a fragment.
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(Abstract, BlueprintType, EditInlineNew, CollapseCategories) class UMassEntityTraitBase : public [UObject](API\Runtime\CoreUObject\UObject\UObject)